Machine for cutting the ends of clay pipes in an undulating line.



. J. K. JENSEN.

MACHINE FOR CUTTING THE ENDS 0F CLAY PIPES IN AN UNDULATING LINE.

APPLICATION FILED JAN. 27, 1914.

Patented Aug. 25, 19m

3 SHEETSSHEET 1.

THE NORRIS PETERS CO.. PHOTO-LITHQ. WASHINGTON. D. C.

J. K. JENSEN. MACHINE FOR CUTTING THE ENDS 0F CLAY PIPES IN AN UNDULATING LINE. APPLICATION FILED JAN. 27, 1914.

1, 108,845. 7 Patented Aug. 25, 1914.

3 $HEETS-SHEET 2.

THE NORRIS PETERS CO. PHOTO-LITHQ, WASHINGTONv D. C.

J. K. JENSEN. MACHINE FOR CUTTING THE ENDS OP CLAY PIPES IN AN UNDULATING LINE. APPLICATION FILED JAN. 27, 1914.

1,1 08,845, Patented Aug. 25, v1914.

3 SHEETS-SHEET 3.

THE NORRIS PETERS CO.. FHOTO-LITHO WASHINGTON. C

UNITED STATES PATENT JENS K. JENSEN, OF KLllTZC-W', POM ERANIA,

MACHINE FOE moss is.

Specification of Letters Patent.

CUTTING THE ENDS 0F GLAY E'IPES IN AN UIIDULATIHG: LINE.

ratented Aug. 25, 1914.

Application filed January 27, 1914. Serial No. 814,772.

To all whom it may concern Be it known that I, Jens K. JENSEN, a subject of the King of Denmark, residing at liliitzow, Pomerania, in the Kingdom of llrussia, German Empire, have invented certain new and useful Improvements in ll i achine for Cutting the Ends of (lay Pipes in an Undulating Line; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others 5 led in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of refer cncc marked thereon, which form a part of this specification.

The present invention relates to a ma chine for cute the ends of clay pipes in an. undulating line.

The invei ion consists in the employment of thin wires which are held taut, and by the aid of which it is possible to obtain an accurate and smooth cut. These wires are held in frames which engage the two ends of the respective pipes to be cut.

in the machine constructed according to the present invention frames, rcsei li-ling saw frames ar provided at the two ends of the pipe, which is secured on a reciprocatory slide. These frames are swiveled independently of each other and may be moved toward and from each other for introducing the pipe. During the cutting operation they are arranged to be reciprocated by means of an eccentric.

The present invention is exemplified in; the accompanying drawing, in which Figure l is a side elevation, 2 a front elevation, Fig. 3 a plan of the machine. Fig. 4 is a front elevation of the machine with the slide and the holders in intermediate position, the cutting gear having been omitted for sake of a greaterclearness.

The machine consists of a frame to, on which are mounted any required number of cutting devices and a separate carriage for receiving and holding the pipes a. In the machine shown in the drawings, arrangement is made for cutting three pipes at a time. The carriage q is provided with semi-circular recesses for receiving a plurality of pipes to be cut, six recesses being shown in Fig. 4 of the drawing, of which recesses three serve for taking fresh pipes or for removing plpes which have been cut.

The carriage is alternately advanced to the right and the left respectlvely across the frame to by means of a raclv. s, after the clutch r on the main shaft has been engaged. Une half of the carriage therefore always free for the finis d pipes to be removed or for fresh dipbw to be placed on it. During the reciprocating travel of the carriage two holders 1, t" 2 and 4) are recipmcated, the supporting rods of which are pivoted on the one hand at the stationary fulcrum. u in. the frame of the machine, on the other hand at the movable point e, in the slotted guide fitted to the carriage. At each reciprocation of the carriage (,r the holders t swing around the fixed point it through a right anglc, while the point e, at which the extensions of the holders meet, slides in the guide (7 In lthe holders t, t are shown in their intermediate position, and from this figure it may also be seen, how the ends of the holders 6, t are passed, during their swing, between the pipes. i Vhen the carriage 9 travels to the left, the holder t will, at the end of the travel bear with a steady pressure on the pipes on the carriage, which are to be out, and will thereby hold them immovable for the cutting operation. ()pposite the two ends of the cutter frames 7), 72 are mounted and arranged to revolve around the axis of the pipes. These frames have the shape of a U the open part turned toward the pipes and having a thin wire fixed taut in it. These frames are revolved byineans of shafts (Z, (Z extending across behind the frames and the bevel gears c, 0. The shafts (Z, d are driven from the main shaft i by means of the chain gear at, the horizontal shafts 2 e and the vertical shaft E with the respective sprockets. The shafts (Z, (Z and the frames 6, b are supported by rods 6, e and f, f respectively, which rock on stationary points in the base of the frame of the machine, the upper and lower journaling points being in the same planes, so that a parallel link v ear is formed. For producing the desired undulating out these link guides are reciprocated during the retation of the cutting frames. This reciprocation is obtained by means of an eccentric g and the eccentric rods h, h The shaft 2, on which the eccentrics are fitted, is continuously driven by the main shaft 2' in tries m, is journaled in the machine frame w. To these eccentrics are fitted connecting rods a, 42 The rods a, n are rigidly coupled at the points 3 and 4 torods e, and at the points 5 and 6 to rods 6 When the crank handle 0 is turned through half a revolution, the two parallel link guides with the cutting frames Z), 6 and the supporting plugs Z, Z Fig. 1, for the pipes are moved apart, so that the carriage with the pipes can be advanced. The supporting plugs Z, Z are semicircular plugs'secured to the inward ends of the cutting frames, and intended to afford a support to the pipes while they are being cut, and at the same time to smooth the inside of the cut. By the reversed rotation of the crank handle the supporting plugs and the cutting frames are introduced into the pipes, and the machine is now in operative position. In order to allow the parallel link guides to be thus moved toward and from each other, it is necessary that the connections with the eccentric rods b, h be loose; As the two guides are linked to the rods a, 72 they will thereafterbe jointly drawn to the left by the eccentric rod 7t, and to the right by the eccentric rod if. The supporting plugs Z, Z revolve with the sawing frames, and reciprocate within the pipes, thereby smoothing the inside of the cut.

The machine hereinbefore described may be designed either for hand power or for mechanical drive.

I claim 1. A machine for cutting the ends of pipes in an undulating line, comprising a reciprocable carriage for the pipes, means for holding the pipes thereon, cutting frames arranged in pairs, one on each side of said carriage, means for revolving the cutter frames around the axes of the respective pipes, an eccentric'adapted to reciprocate said frames axially to said pipes, and means for moving said frames into and out of open ative position.

2. A machine for cutting the ends of pipes in undulating lines, comprising a reciprocable carriage for the pipes, means for holding the pipes thereon, cutter frames arranged in pairs, one on each side of said carriage, driving gears for revolving said frames around the axes of the respective pipes, oscillatory, parallel guided supports for said gears and frames, and means for swinging said supports to reciprocate the gears and frames axially of the pipes.

8. A machine for cutting the ends of pipes in undulating lines, comprising a reciprocable carriage for the pipes, means for holding the pipes thereon, cutter frames arranged in pairs, one on each side of said carriage, driving gears for revolvmg said frames around the axes of the respective pipes, oscillatory, parallel guided supports for said gears and frames, means for swinging said supports to reciprocate the gears and frames axiallyof the pipes, and means for moving the frame intoand out of operative position.

a. A machine for cutting the ends of pipes in undulating lines, comprisin a reciprocable carriage for the pipes, means for holdmg the pipes thereon, cutter frames arranged 111 pairs, one on each s1de of sald carriage, driving gears operated by a com.

mon shaft for revolving said frames around the axes of the respective pipes, oscillatory, parallel guided supports for said gears and frames, an eccentric, rods connecting the latter with the supports and adapted to reciprocate the frames axially of the pipes, and

means for moving the supports indepen dently of said rods to permit the movement of the carriage. v

5. A machine for cutting the ends of pipes in an undulating line, comprising a carriage for the pipes, a driving shaft, means operated by the latter for reciprocating the carriage, cutting frames arranged in pairs, one on each side of said carriage, parallel swinging supports for said frames, driving mechanism coupled with said supports adapted to revolve the frames around the axes of the respective pipes, an eccentric driven from the driving shaft adapted to reciprocate the frames axially to the pipes, means for moving the frames into and out of operative position, and holders pivoted to the machine frame and slidably connected to the carriage adapted to hold the pipes during the cutting operation.

6. A machine for cutting the ends of pipes in an undulating line, comprising a reciprocable carriage for the pipes, means for holding the pipes thereon, cutting frames arranged in pairs, one on each side of said carriage, means for revolving the cutting frames around the axes of the respective pipes, an eccentric adapted to reciprocate said cutting frames axially to said pipes, a supporting plug fitted to one arm of each of said cutting frames adapted to enter the pipe being cut and smooth the inside of said cut, said cutting frames adapted to revolve with said plugs during the cutting operation coaxially to the respective pipes, and means for moving said cutting frames into and out of their operative position.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

JENS K. JENSEN.

WVitnesses y VVALTER MALBRANE, A. JENSEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

